Da-lueftungstechnik.de - SEO Checker

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Overview of the SEO Check
Meta information
100% 
Page quality
75% 
Page structure
79% 
Link structure
78% 
Server
100% 
External factors
21% 
SEO Score
Response time
0.20 s
File size
46.40 kB
Words
616
Media files
12
Number of links
47 internal / 8 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
DA Lüftungstechnik GmbH - Home
The length of the page title is perfect. (308 pixels out of 580 max pixel length)
There are no duplicate words in the title
Meta description
(Critically important)
DA Lüftungstechnik GmbH, Berlin
The length of the meta description is perfect. (208 pixels out of 1000 max pixel length)
Crawlability
(Critically important)
There are no problems in accessing the website.
Canonical URL
(Important)
No canonical link is specified.
Language
(Somewhat important)
Language detected in text: de
Language defined in HTML: de
Server location: United States of America
The following language is defined by HTML: de
Alternate/Hreflang Links
(Somewhat important)
There are no alternate links specified on this page.
Other meta tags
(Somewhat important)
There is no rel next meta tag on this page.
There is no rel prev meta tag on this page.
Domain
(Somewhat important)
The domain is no subdomain.
The domain length is good.
The domain does not contain non-latin characters.
Page URL
(Somewhat important)
No parameters were found in the URL.
No session ID was found in the URL.
The URL does not have too many subdirectories.
Charset encoding
(Somewhat important)
The charset encoding (UTF-8) is set correctly.
Doctype
(Nice to have)
The doctype HTML 5 is set correctly.
The doctype is placed at first in the HTML code.
Favicon
(Nice to have)
The favicon is linked correctly.

Meta tags

NameValue
generatorIONOS MyWebsite
viewportwidth=device-width, initial-scale=1, maximum-scale=1, minimal-ui
format-detectiontelephone=no
keywordsHeizung, Sanitär, Klima, Installation, Installateur, Haustechnik, Heizungstechnik, Sanitärinstallation, Umwelttechnik, Solartechnik, Meisterbetrieb
descriptionDA Lüftungstechnik GmbH, Berlin
robotsindex,follow
business:contact_data:country_nameDeutschland
business:contact_data:street_addressNachtalbenweg 61
business:contact_data:localityBerlin
business:contact_data:email[email protected]
business:contact_data:postal_code13088
business:contact_data:phone_number+49 030 68071910
business:contact_data:fax_number+49 030 68071912
langde
og:typebusiness.business
og:urlhttps://www.da-lueftungstechnik.de/
og:titleDA Lüftungstechnik GmbH - Home
og:descriptionDA Lüftungstechnik GmbH, Berlin
og:imagehttps://www.da-lueftungstechnik.de/s/misc/logo.jpg?t=1743454377
Content-Typetext/html; charset=UTF-8

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Page quality

Content
(Critically important)
This page contains 616 words. That's ok.
40.9% of the text are stop words.
Keywords used in the page title are also used in the page content. That's good!
The page contains a listing, which indicates a good text layout.
18 paragraphs were found on this page.
The text content is perfect.
No placeholders texts or images were found.
There are no duplicates on the site.
The average number of words per sentence of 15.33 words is good.
Frames
(Critically important)
This page does not use a frameset.
Mobile optimization
(Somewhat important)
No Apple touch icon is specified.
A viewport "width=device-width, initial-scale=1, maximum-scale=1, minimal-ui" is provided.
Bold and strong tags
(Somewhat important)
The following tag is repeated too often: neuer auftrag:
Image SEO
(Somewhat important)
11 images have no alt attribute. The content of alt attributes is used by search engines.
Social Networks
(Nice to have)
There are only a few social sharing widgets on the page. Make your website popular in social networks with social sharing widgets.
Additional markup
(Nice to have)
No additional page markup was found.
HTTPS
(Somewhat important)
This website uses HTTPS to protect privacy and integrity of the exchanged data.
All included files are also transferred via HTTPS.

Media list

URLAlt attributeTitle
...emotionheader.jpg?1722868744.920px.266pxNo alt attribute provided
...emotionheader.jpg?1722868744.920px.266pxNo alt attribute provided
/s/misc/logo.jpg?t=1743454377No alt attribute provided
...c_images/cache_25859164.jpg?t=1686335412No alt attribute provided
...c_images/cache_84687027.jpg?t=1722871260No alt attribute provided
...c_images/cache_85095884.gif?t=1699632729No alt attribute provided
...c_images/cache_53171973.png?t=1736180376No alt attribute provided
...c_images/cache_86801396.jpg?t=1736179999No alt attribute provided
...c_images/cache_68810426.jpg?t=1676667570No alt attribute provided
...c_images/cache_86529479.png?t=1729605577No alt attribute provided
...dn.website-start.de/s/img/cc/printer.gifNo alt attribute provided
https://cdn.website-start.de/s/img/logo.gifIONOSIONOS

Page structure

H1 heading
(Critically important)
There is no H1 heading specified.
Headings
(Important)
The structure of headings is missing one or more levels. Do not skip heading levels.

Heading structure

Heading levelContent
H2 DA Lüftungstechnik GmbH
H2 NEWS
Some internal links have dynamic parameters. All internal URLs, which are not marked as nofollow, should not contain dynamic parameters.
Some anchor texts are used more than once.
2 links don't have an anchor text.
The number of internal links is ok.
None of the anchor texts is too long.
There are 8 external links on this page.

Found links on this page

LinkAttributesAnchor text
/Subdomain Home
/unternehmen/Subdomain Unternehmen
/stellenangebote/Subdomain Stellenangebote
/stellenangebote/vertriebs-pro...Subdomain Vertriebs-/Projektleitung (HKLS)
/stellenangebote/kaufm-vertrie...Subdomain Kaufm.Vertriebs-, Projektassistenz
/stellenangebote/kundendienst-...Subdomain Kundendienst-/Service-/IBN-Mitarbeiter
/stellenangebote/lüftungsmonteur/Subdomain Lüftungsmonteur
/stellenangebote/heizungs-sani...Subdomain Heizungs-, Sanitärmonteur
/stellenangebote/msr-elektromo...Subdomain MSR-, Elektromonteur
/stellenangebote/gewerkepartne...Subdomain Gewerkepartner werden?
/leistungen/Subdomain Leistungen
/leistungen/1-rlt-anlagenbau/Subdomain 1.RLT-Anlagenbau
/leistungen/2-rlt-montage/Subdomain 2.RLT-Montage
/leistungen/3-rlt-kleinaufträge/Subdomain 3.RLT-Kleinaufträge
/leistungen/4-rlt-wartung-serv...Subdomain 4.RLT Wartung,Service,Reparatur
/projekte-in-bearbeitung/Subdomain Projekte in Bearbeitung
/projekte-in-bearbeitung/anlag...Subdomain Anlagenbau
/projekte-in-bearbeitung/rahme...Subdomain Rahmenverträge/Industrie
/projekte-in-bearbeitung/wartu...Subdomain Wartung / Service
/referenzprojekte/Subdomain Referenzprojekte
/referenzprojekte/1-rlt-anlage...Subdomain 1.RLT - Anlagenbau
/referenzprojekte/2-rlt-montage/Subdomain 2.RLT - Montage
/referenzprojekte/3-rlt-kleina...Subdomain 3.RLT - Kleinaufträge
/referenzprojekte/4-rlt-wartun...Subdomain 4.RLT Wartung, Service, Reparatur
/sponsoring-spenden/Subdomain Sponsoring/Spenden
/kontakt/Subdomain Kontakt
/kontakt/anfahrt/Subdomain Anfahrt
/impressum/Subdomain Impressum
/downloads/Subdomain Downloads
/datenschutz/Subdomain Datenschutz
/bildergalerie/Subdomain Bildergalerie
/Subdomain Text duplicate Home
/unternehmen/Subdomain Text duplicate Unternehmen
/stellenangebote/Subdomain Text duplicate Stellenangebote
/leistungen/Subdomain Text duplicate Leistungen
/projekte-in-bearbeitung/Subdomain Text duplicate Projekte in Bearbeitung
/referenzprojekte/Subdomain Text duplicate Referenzprojekte
/sponsoring-spenden/Subdomain Text duplicate Sponsoring/Spenden
/kontakt/Subdomain Text duplicate Kontakt
/impressum/Subdomain Text duplicate Impressum
/downloads/Subdomain Text duplicate Downloads
/datenschutz/Subdomain Text duplicate Datenschutz
/bildergalerie/Subdomain Text duplicate Bildergalerie
/Subdomain No Text
/s/cc_images/teaserbox_2585916...Subdomain No Text
http://www.fc-hansa.de/New window External Subdomain No Text
/s/cc_images/teaserbox_8509588...Subdomain No Text
https://www.marco-bertram.de/k...New window External Subdomain A-TITLE WERBUNG - Buchbestellung direkt über diesen Link supported by DA Lüftungstechnik GmbH
http://www.da-fewo.de/New window External Subdomain A-TITLE WERBUNG
http://www.da-immobilien-bau.de/New window External Subdomain Text duplicate A-TITLE WERBUNG
https://www.musik-justforfun.de/New window External Subdomain A-TITLE Der Eltern- und Kind-Chor supported by DA Lüftungstechnik GmbH
/sitemap/Subdomain Sitemap
https://login.1and1-editor.com...Nofollow External Subdomain Login
https://101.sb.mywebsite-edito...Nofollow External Subdomain Logout
https://101.sb.mywebsite-edito...Nofollow External Subdomain Seite bearbeiten

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://www.da-lueftungstechnik.de/"
HTTP header
(Important)
No X-Powered HTTP header is sent.
The web server transmits the web page (HTML) in compressed form.
Performance
(Somewhat important)
The page response time is excellent with 0.20 seconds.
The file size of the HTML document is fine (46 kB).

HTTP Response Header

NameValue
content-typetext/html; charset=UTF-8
x-ws-ratelimit-limit1000
x-ws-ratelimit-remaining998
dateMon, 28 Apr 2025 11:10:47 GMT
serverApache
expiresThu, 19 Nov 1981 08:52:00 GMT
cache-controlno-store, no-cache, must-revalidate, post-check=0, pre-check=0
pragmano-cache
x-content-type-optionsnosniff
x-xss-protection0;report=https://cdn.website-start.de/app/reporting/policyviolation/submit
content-security-policy-report-onlydefault-src *;script-src 'unsafe-inline' 'unsafe-eval' *;style-src 'unsafe-inline' *;connect-src * blob:;report-uri https://cdn.website-start.de/app/reporting/policyviolation/submit
content-encodinggzip
varyAccept-Encoding
set-cookie69 Characters
statuscode200
http_versionHTTP/2

External factors

This page has only a few links from other websites.
This page only has backlinks from 7 referring domains.
This page only has 11 backlinks.
This page only has few backlinks from 4 different ip addresses.

Links from Wikipedia

No links from Wikipedia were found.

Robots.txt

User-agent: *
Disallow: https://www.da-lueftungstechnik.de/c/
Disallow: https://www.da-lueftungstechnik.de/protected/
Sitemap: https://www.da-lueftungstechnik.de/sitemap.xml

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Search preview

www.da-lueftungstechnik.de
DA Lüftungstechnik GmbH - Home
DA Lüftungstechnik GmbH, Berlin

Most important keywords

Following keywords were found. You can check the keyword optimization of this page for each keyword.

KeywordResultRecheck
Lüftungstechnik80%Check
DA Lüftungstechnik80%Check
DA Lüftungstechnik GmbH75%Check
Lüftungstechnik GmbH73%Check
Berlin51%Check
Berlin Brandenburg45%Check
Gewerkepartner39%Check
Mecklenburg-Vorpommern39%Check
Hamburg39%Check
Gewerk39%Check
Show more keywords and terms

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